End-to-side neurorrhaphies to the ulnar and median nerves at the wrist: Report of two cases without sensory or motor improvement

The authors present two unsuccessful clinical cases of end-to-side neurorrh aphy. In the first patient the distal median nerve was coapted in an end-to -side manner to the intact ulnar nerve. In the other patient four cables of sural nerve graft were used to bridge the ulnar nerve and the intact media n nerve by two end-to-side coaptations. Neurorrhaphies were performed via e pineural sutures through epineural windows. Both of the cases failed to dem onstrate any signs of regeneration either clinically or as evidenced by ele ctromyography, Semmes-Weinstein monofilament test, or 256-Hz vibration test s at 18 and 21 months' follow-up respectively.